Become a record holder Browse Records Shop Press releases Contact us Home
25.05.2026 New claim submitted for Backwards Stair Climbing, 1 Hour 09.05.2026 New claim submitted for Mental Calculation, Division 09.05.2026 New claim submitted for Mental Calculation, Square Roots Keywords: (e.g football beer mat)	Listed below are the verified claims for the record listed. Ultra speed memory - Decimal numbers - 4 seconds - Current world record 1. 26 Ramón Campayo (Spain) on 8 June 2006 in Pelhøimov, Czech Republic   Previous verified claims 1. 25 Ramón Campayo (Spain) on 29 May 2006 in Berlin, Germany 2. 22 Gert Mittring (Germany)     The Book of Alternative records - World records, record breakers and more!